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2351.

What does the parth an object look like when it is in uniform motion

Answer»

Heya...ur answer...
path of an object look like it is in a straight LINE and it is stationary ...when it is in UNIFORM MOTION....
hope it HELPS...
pls mark brainliest

2352.

distance between prallel plate capacitor is increased what happens to the charges on plates, potential difference across plates, energy stored in the capacitor

Answer»

The FORMULA for the capacitance of a parallel plate capacitor is

C=ϵAx, where ϵ is the permittivity of the medium between the plates, A is the OVERLAPPING area of the two plates and x is the uniform separation between the plates.

Capacitance, intuitively, is the ability of a pair of conductors separated by a dielectric to store ELECTROSTATIC energy - or in other words, how much charge the conductors can store at a given VOLTAGE level. It is analogous to the CAPACITY of a bucket being how much water it can hold.

Q=CV

Assuming that the capacitor is connected across a constant voltage source keeping V constant,

increasing the distance between the parallel plates will decrease C

at a constant V, an increase in C will decrease the charge Q that the conductors can hold.

2353.

Hii friendsplease explain hopes experiment CONTENT QUALITY REQUIRED #Aarchi

Answer»

In 180, T.C. Hope devised a simple arrangement as Hope's Apparatus for demonstrating The anomalous expansion of water.
The apparatus consist of a tall metallic cylinder provided with two side openings, one near the TOP and other near the bottom, fitted with thermometers T1 ABD T2.
The central part of cylinder is surrounded with a cylindrical trough containing a frezzing mixture of ice and salt.
The cylinder is fitted with pure water at room temperature.
observations:
Initially both the thermometers T1 and T2 show same temperature.
First the thermometer recorded by lower thermometer T2 starts decreasing and finally becomes steady at 4⁰c, while the temperature recorded in upper thermometer T1 REMAINS unchanged during this time.
Then the temperature recorded by the lower thermometer T2 remains constant at 4⁰c. and the thermometer T1 near the top records continuous fall in temperature up to 0⁰c.and then it becomes steady.
THUS final temperature T1=o⁰c
                                     T=4⁰c
explanation:initially the water in the cylinder is at room temperature. as the freezing mixture cools the water in the central position of the cylinder, the water contracts.so the density of water increses and sinks to bottom thus decreasing  the temperature of lower thermometer T2 to fall rapidly. The thermometer T1 does not show change.This continues till the temperature of entire water below the central portion reaches 4⁰c.
On further cooling 4 ⁰c, , due to anomalous expansion the water in central portion expands. as a results, the reading of upper thermometr T1 falls rapidly to 0⁰c. and ice begins to form near the top. The water at the bottom still remain at 4⁰c.
Conclusion: the expansion of water when COOLED from 4 ⁰c to 0⁰c is known as anomalous expansion of water

Read more on Brainly.in - brainly.in/question/757127#readmore

2354.

if a police car running after a thief's car with the speed 126 km/hr if a bullet is fired from the police car with the speed of 200m/s .If the speed of police car is 36 km/hr.if the initial distance between police car and thieves car is 200 m .Find out whether bullet will hit the thief car

Answer»

speed of thief's car = 126km/hr = 35m/s


speed of police car = 36km/hr = 10m/s


speed of bullet = 200m/s


initial separation between thief's car and police car = 200m


As the bullet was fired from a police car that was already moving with a speed of 10m/s, the speed of the bullet relative to GROUND = 200 + 10 = 210m/s


Now, the relative speed of the bullet as seen by a thief in his car = 210 - 35

= 175m/s


It means that if you consider the thief's car as a STATIONARY object, then the bullet approaches the thief's car with a speed of 175 m/s


So, the time in which the bullet reaches the thief's car = 200/175 =1.14 seconds


Thus, the bullet will definitely HIT the Thief's car.


Hope it helps!!

2355.

If u use a stick to push an object,the muscular force acting on the object is a non contact force since ur body is not in contact with the object.True or false? Explain

Answer»

HEYA MATE,

HERE IS UR ANSWER.

Thanks for asking this question.

FALSE ! SINCE you are stuck to the stick and the stick to the OBJECT so when you push the stick then the stick will go and push that object....so direct contact is there ...so it is a contact-force

I HOPE IT HELPS U.

2356.

Y do u think it is necessary to define a separate quantity called pressure? Why is defining only force not enough....?

Answer»

BCOZ pressure is FORCE UPON AREA. if not DEFINE seperately then there is no difference between force & pressure it totaly wrong


2357.

If a body is moving with uniform speed in a particular direction on a perfectly smooth surface, then no force is acting on it. True or false? Explain....

Answer» ACCORDING to me
the ANSWER is true as it is CLEARLY mentioned in the question perfectly SMOOTH surface which means and zero FORCE of friction
plz mark as brainliest if it's correct
2358.

the mass of a brick is 250g it's dimentions are 10cm*5cm *2cm find the pressure the brick exerts on the ground if it test on 10*5cm wide 10*2cm side 1kg-f=10N

Answer»

P=f/a f=10/4 and a=1000cm
p=0.25

2359.

Ch. Physical quantities 5 ques no..

Answer»

It's BLUR MEN TRY to RESEND again

2360.

explain how is it impossible from an object to move with constant speed but with uniform acceleration

Answer»

An object moving in a circle is accelerating. Accelerating OBJECTS are objects which are CHANGING their VELOCITY - either the speed (i.e., MAGNITUDE of the velocity vector) or the direction. An object undergoing UNIFORM circular motion is moving with a constant speed.

2361.

Function of sclera in eye

Answer»

The SCLERA, as separated from the cornea by the corneal LIMBUS. The sclera, also known as the white of the eye, is the opaque, fibrous, protective, OUTER layer of the human eye CONTAINING mainly collagen and some elastic FIBER.

2362.

What is the formula to change kelvin to celcius.and i m very happy that i m at 2nd rank in leaderboard. plz give ans correctly

Answer»

the FORMULA for CHANGING KELVIN into CELSIUS is k=c+273 and for changing celsius into kelvin is c=k-273

hope it helps u


2363.

Please answer it quickly

Answer»
v = 2 {t}^{2} e {}^{ - t}  \\ a =  \frac{dv}{dt}   \\ a = 2(2t {e}^{ - t}  + ( -  {e}^{ - t}  {t}^{2} ) \\ at \: t = 0 \\ a = 2(0 + 0) \\ a  = 0
ANS=(1) opt

MARK AS BRAINLIEST IF HELPED
2364.

Write newtone first law????

Answer»

The focus of LESSON 1 is Newton's first LAW of motion - sometimes referred to as the law of INERTIA. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same DIRECTION unless acted upon by an unbalanced force.

2365.

What is the speed of sound in ocean?

Answer» SOUND Travels about 1500 metres PER SECOND in seawater.
2366.

What is ideal gas law formula

Answer»

Pv = NRT isideal gas law formula
here P= pressure
V= volume
R= constant
t= TEMPERATURE

2367.

What is the radius of moon?

Answer»

3 wee wee's STACKED on TOP of each other and stretched across the MOON

2368.

What is critical angle in physics

Answer»

The angle of incidence BEYOND which rays of light passing through a denser MEDIUM to the surface of LESS DENSE medium are no LONGER refracted but totally reflected.

2369.

What is the mass of earth?

Answer»

Hey mate
Here is ur ANSWER
MASS of earth is 5.972*10^24 kg

Hope it HELPS you
THANKS

2370.

Why is coke used as an industrial fuel?

Answer»

I don't know PROPERLY but I can try cause COKE has GASES dissolved in it and by SHAKING it it releases GREAT pressure so it gets thrust

2371.

What will happen if a rock collides with jupiter?

Answer»

It will MAKE a spot on its surface ALSO called craters it depends on its SIZE of rock how BIG will be the crater

2372.

If the resistance in the 3 successive earn of a balanced whitestone bridge are 1,2 and 36 ohm respectively.what will be the 4th arm?

Answer»

Answer: 72 ohms

Explanation:

Let the RESISTANCE of the 4th arm be X

Ratio: 1/2 = 36/X

X = 36 × 2 = 72 ohms

2373.

two resistors of 2 ohm and 4 ohm are connected in parrallel to a constant direct current voltage in which case more heat is produced?

Answer»

Heat Produced is GIVEN by
Q = i^2Rt , It is directly proportional to the Resistance of the resistor, if the current is constant for a certain PERIOD of time.
As here the current too varies due to parallel connection
2 OHM resistor gets 2i/3 A and 4 ohm resistor gets i/3 A

For 2 ohm:
Q= 8i^2/3 J

For 4 ohm :
Q= 4i^2/3 J


So 2ohm resistor produces more heat

2374.

Two electric bulbs are rated as220V-100W and 220V-60W.which these has greater resistance and why?

Answer»

For FIRST bulb

Potential difference = 220 V

Power supplied = 100 W

We know that P = V²/R

So, 100 = 220 * 220 / R

R = 220*220/100 = 484 ohm


For second bulb

Potential difference = 220 V

Power supplied = 60 W

We know that P = V²/R

R = 220*220/60

R = 806.6667 ohms.



Hence, from calculation the second bulb has more resistance.

More is the power, LESS is the resistance and conversely less is the power, more is the resistance.

This is the reason.


Hope this helps you.

2375.

How to solve these problems? answer fast

Answer»

In the 4TH sum
let the FIRST no. be x and other be x+10
then,
x+10/x =5/3
3x + 30= 5x
x=15
the nos. are 15 and 25

5th sum:
3x+2=x-50
2x= -52
x= -26

2376.

What is quantum physics

Answer»

_____ heya mate_____

here is your answer

The branch of physics concerned with quantum THEORY
2 nd Meaning

Quantum MECHANICS, including quantum field theory, is a fundamental theory in physics which describes nature at the smallest SCALES of energy levels of atoms and subatomic particles

hope the answer will HELP you!!!

2377.

Who discovered Pluto? a)Clyde Tombaughb)Galileo Galilei c)Mikhail Lomonosov

Answer» OPTION A is RIGHT......
2378.

What does it rain in Neptune ???

Answer»

This "DIAMOND rain" would convert potential energy into heat and HELP drive the convection that GENERATES Neptune's magnetic field. ... Experiments LOOKING for conversion of methane to diamonds found weak signals and did not reach the temperatures and pressures expected in Uranus and Neptune.
नई दिल्ली। धरती पर रहने वाला करीब करीब हर इंसान यह जानता है कि हीरे कितने कीमती होते हैं। कई लोगों की तो जीवन भर की पूंजी केवल एक हीरा खरीदने में ही खत्म हो जाती है। ऐसे में अगर आपसे कोई कहे कि हमारे सौरमंडल में दो ग्रह ऐसे हैं, जहां हीरों की बारिश होती है, तो आप तुरंत ही उन ग्रहों का नाम जानना चाहेंगे। यह सच है कि हमारे सोलर सिस्टम में दो ऐसे ग्रह शामिल हैं जहां हीरे की बारिश होती है। यह ग्रह हैं नेप्ट्यून और यूरेनस।

यह दावा करते हुए वैज्ञानिकों ने कहा है कि यूरेनस और नेप्ट्यून में पानी नहीं, बहुमूल्य रत्न हीरे की बारिश होती है और ऐसा हाल ही पिछले कुछ दिनों में वहां हो रहा है। वैज्ञानिकों का कहना है कि इन दोनों ही ग्रहों के अंदरूनी भागों में एट्मॉस्फियरिक प्रेशर बहुत ज्यादा होता है, जिसकी वजह से हाइड्रोजन और कार्बन के बॉन्ड टूट जाते हैं।

यही वजह है कि इन ग्रहों पर हीरों की बारिश होती है। विशेषज्ञों का मानना है कि पिछले हजार सालों से ये हीरे धीरे-धीरे इन प्लेनेट्स की बर्फीली सतह पर जमा हरे रहे हैं। आपको बता दें कि इन दोनों ही ग्रहों की संरचना पृथ्वी से बहुत अलग है। इन ग्रहों पर हाइड्रोजन और हीलियम जैसी गैसों का दबदबा है। वैज्ञानिकों का मानना है कि इन ग्रहों के भीतरी भाग से लगभग ६२०० मील अंदर अत्याधिक दबाव होता है। यही वजह है कि इन ग्रहों पर हीरों की बारिश होती है।

दरअसल हमारे एनवायर्नमेंट में एटमॉस्फियरिक प्रेशर होता है। इसके जरिए वॉटर वेपर्स का कंडेन्सेशन होता है और इसी तरह आसमान में बादल बारिश और ओले बनकर धरती पर गिरते हैं। नेप्ट्यून और यूरेनस के एटमॉस्फियर में मिथेन है और उसे प्रेशराइज्ड करने पर हाइड्रोजन अलग हो जाता है और कार्बन डायमंड यानी कि हीरे की शक्ल ले लेता है।
Hope it HELPA

2379.

Is quantum and photon are same

Answer»

No ,A PHOTON can be DEFINED as QUANTUM of energy. It is an elementary particle.
Quantum can be described as MEASURE of quantity.

2380.

What is unit cell explain

Answer»

❤☺❤☺❤HEY MATE YOUR ANSWER IS HERE. ..❤☺❤☺❤

The smallest building block of a crystal, CONSISTING of atoms, ions, or molecules, whose geometric ARRANGEMENT defines a crystal's characteristic symmetry and whose REPETITION in space produces a crystal lattice.

❤☺❤☺❤PLZZ MARK ME BRAINLIEST ❤☺❤❤☺

2381.

Is these questions are called derivation ????

Answer»

No QUESTIONS and DERIVATION is DIFFERENT

2382.

State two factor on which the speed of sound wave traveling in a medium depend

Answer»

It MAY depend UPON the density of the medium and MOLECULES present in it because molecules transmitted sound


please mark this as the branliest ANSWER,

2383.

Why front portion of a aeroplane has streamlined body

Answer»

Hey!!!

the front PORTION of a aeroplane has streamlined BODY to reduce friction. so it can move and fly easily without any DIFFICULTY. not only aeroplane has streamlined body, BIRDS, fishes and boat and SHIP also have streamlined body for the same purpose.

cheers!!!

2384.

How many image are formed for a point source kept in

Answer» INFINITE
i THINK so........
2385.

Why it is desirable to transmit high voltage and low current during the transmission of power?

Answer»

We can REDUCE VOLTAGE by using transformer, but current can't be reduced in AC circuits.so ,to transmit electricity, it is desirable to transmit high voltage and low current.

2386.

block of mass M is pulled along a horizontal surface by applying a force at an angle theta with the horizontal if the block travels with a uniform velocity and has a displacement D and the coefficient of friction you that then find the work done by the applied force

Answer»

Given,

The MASS of the block = M

ANGLE between the horizontal plane and applied FORCE = \theta

The DISPLACEMENT of the block = D

Let consider the applied force is = F

Co-efficient of friction of the SURFACE = \mu

And the reaction force = F_{R}=m\times{g}-Fsin\theta

Therefore the frictional force of the block  

f=\mu\times{F_{R}}\\\\f=\mu(m\times{g}-Fsin\theta)

For the horizontal motion of the block it is necessary that applied force F\geq {f}

Therefore,

F\geq{f}\\\\\Rightarrow{Fcos\theta}\geq{\mu(m\times{g}-Fsin\theta)}\\\\\Rightarrow{Fcos\theta\geq{\mu\times{m}\times{g}-\mu\times{Fsin\theta}

\Rightarrow{F}cos\theta-\mu{F}sin\theta\geq  \mu\times{m}\times{g}\\\\\Rightarrow{F}(cos\theta-\mu{sin}\theta)\geq \mu\times{m}\times{g}\\\\\Rightarrow{F}\geq \frac{\mu\times{m}\times{g}}{(cos\theta-\mu{sin}\theta)}

The work done for moving the block at a distance of D

W=\vec{F}\times\vec{D}=F\times{cos\theta}\times{D}=\frac{\mu\times{m}\times{g}}{(cos\theta-\mu{sin}\theta)}\times{cos\theta}\times{D}

2387.

Function of crystalline lens

Answer»

Hey
CRYSTALLINE lens in our eyes has the same work as that of a convex lesns which is to BEND the rays of LIGHT COMING inside the eye and to focus them on the RETINA.

Hope it helps :))

2388.

Find the moment of force of 20 Newton about a axis of rotation at distance 0.5 m from the force

Answer» MOMENT of FORCE = Force × DISTANCE
= (20×0.5) N
= 10 N
2389.

a car travels with speed 30 km/h for 30 min and then with speed 40 km/h for 1 h. find: a)total distance travelled by the car b)the total time of travel,and c) the average speed of car

Answer»

In 30 MIN the car travelled 15km. And the LAST 1 hour it travelled 40 km. so it TOTALLY travelled (40+15=55) 55KM

2390.

Function of ciliary muscle

Answer»
2391.

State whether the following statements are true or false.1. Rubber and copper allow the light to pass through themcompletely​

Answer»

ANSWER:

no...........it's FALSE

2392.

1) Metal 2) NonmetalMeter is the length atC between two marks on a metal bar made ofplatinum-iridium kept at paris.1) 100°C2) 37°C3) Natural Magnet 4) Artificial MagnetC between two marks on a metal bar made of3) 0°C4) 10°C​

Answer»

METAL is good CONDUCTOR of ELECTRIC no metal is bad conductor of heat

2393.

How Tourist use Distance and Displacement method in Journey?

Answer»

ANSWER:

HOPE it helps....U can start from the first pic

Explanation:

MARK as brainliest PLZZ please

2394.

State an example for a situation mentioned below in which a force.​

Answer»

Answer:

Examples in Which Force changes the SPEED of an object which is moving: --->When a batsman will hit the ball with bat, the speed of moving ball changes. ---> When a person apply the brakes in car, suddenly the car COMES to rest with DECREASE in speed. ---> When FIELDER catches the ball, the speed of ball decreases.

2395.

A car moving at a speed of 8.0 m/s merges onto the highway and accelerates at a rate of3.0 m/s2. How fast is it moving after travelling for 54 meters?​

Answer»

\underline{\underline{\purple{\sf \blue{\mapsto} Step\:\:by\:\:step\: Explanation:}}}

•As per the DATA in Question,

  • Initial velocity of car = 8m/s (u)
  • Final velocity of car = ? (v) .
  • Acceleration of the car = 3.0m/s².
  • Distance travelled by the car = 54M .

•Using the third equation of MOTION :

\boxed{\red{\bf\purple{\dag}\:\:2as\:=\:v^2\:-\:u^2}}

Substituting the RESPECTIVE VALUES ,

\sf{⇒ 2as = v² - u² }

\sf{⇒  2 × 3 × 54 = v² - 8² }

\sf{⇒  324 + 64 = v² }

\sf{⇒ v² = 388}

\sf{⇒ v =} \sqrt{388 }

\sf{⇒ v = 19.69 m/s ≈ 20m/s }

Hence the required answer is\sf{ 19.69 m/s.}

______________________

2396.

Define 1 joule of work ​

Answer»

ANSWER:

Joule is the SI UNIT of WORK. 1 Joule is AMOUNT of work done when a force of 1 Newton displaces a body through a distance of 1M in the direction of the force applied.

2397.

Image of ______ object in plane mirror is virtual ​

Answer»

IMAGE of real OBJECT in PLANE MIRROR is VIRTUAL .

2398.

_______ in a plane mirror suffer latral inversion​

Answer»

ANSWER:

Images in PLANE mirror SUFFER lstersl INVERSION.

2399.

लोर गेट का प्रतीक एवं सत्यता सामने बनाकर दिखाइए​

Answer»

EXPLANATION:

JOIN me for FUN

jfh-ydku-syj

2400.

Why are they called Apartments, if they're together?​

Answer»

ANSWER:

HENCE. The REASON is they do not ACCEPT each other PLANETARY